<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <!-- import CSS -->
  <link rel="stylesheet" href="https://cdn.staticfile.org/element-ui/2.15.9/theme-chalk/index.css">
  <style>
    .el-header{
        background-color: red;
    }
    .el-main{
      background-color: green;
      height: 300px;
    }
    .el-footer{background-color: blue}
    .el-aside{background-color: purple}
  </style>
</head>
<body>
<div id="app">
  <el-container>
    <el-header>Header</el-header>
    <el-main>Main</el-main>
    <el-footer>Footer</el-footer>
  </el-container>
  <h1>上,下(左,右)</h1>
  <el-container>
    <el-header>Header</el-header>
    <el-container>
      <el-aside width="200px">Aside</el-aside>
      <el-main>Main</el-main>
    </el-container>
  </el-container>
  <h1>上,下(左,右(上,下))</h1>
  <el-container>
    <el-header>Header</el-header>
    <el-container>
      <el-aside width="200px">Aside</el-aside>
      <el-container>
        <el-main>Main</el-main>
        <el-footer>Footer</el-footer>
      </el-container>
    </el-container>
  </el-container>
</div>
</body>
<!-- import Vue before Element -->
<script src="https://cdn.staticfile.org/vue/2.6.14/vue.min.js"></script>
<!-- import JavaScript -->
<script src="https://cdn.staticfile.org/element-ui/2.15.9/index.min.js"></script>
<script>
 let v = new Vue({
    el: '#app',
    data: function() {
      return {

      }
    },
   methods:{

   }
  })
</script>
</html>